With the Exponential increasing of sequencing data in genomics, transcriptomics and epigenetics, and the development of data analysis methods, a serious of informatics database with integrated analysis tools have been constructed, like the Flybase and TAIR. Silkworm, as a domesticated insect, lacks an online analysis platform. On the basis of previous efforts, including Silkbase, SilkDB and Ensembl Insects, we constructed the silkworm genome informatics database, SGID. Hopefully, it will assist to bioinformatics analysis of silkworms in the future.